Intelligent haemorrhoids loop ligature device

Abstract

The utility model discloses an intelligent haemorrhoids loop ligature device which comprises a gun body, a quick-change connector, a pull strip, a push block, a rotary cutter, a battery, a first control circuit board, a motor, a lead screw, a rotary encoder, a sliding block and a second control circuit board, the pull strip is clamped in the push block, the push block is clamped on a push pipe, and the rotary cutter is fixed at the front end of the push block. A tensioning knot of the loop ligature ring penetrates through the rotary cutter and then is clamped on the brace; the battery is connected with the first control circuit board and the second control circuit board, the first control circuit board is connected with the motor, the motor is connected with the lead screw, the lead screw is clamped with the sliding block, and the sliding block is connected with the push pipe. The second control circuit board is connected with a rotary encoder, and the rotary encoder is fixed to the lead screw. The sliding block is connected with the rear end of the brace, and when the lead screw pushes the sliding block to slide front and back, the brace moves front and back. The intelligent haemorrhoids loop ligature device can achieve automatic control of lesion position adsorption, lesion position loop ligature, loop ligature ring tightening and loop ligature ring cutting.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hemorrhoid treatment instrument technical field, especially, relate to a kind of intelligent hemorrhoid ligation device. BACKGROUND

[0002] Hemorrhoid ligation (RPH) is developed from traditional ligation therapy of traditional Chinese medicine, and the method is to put special ligation rubber ring on the base of hemorrhoid or mucosa on hemorrhoid in appropriate position by special hemorrhoid ligation device, to reduce the blood supply or reduce venous reflux of hemorrhoid by the tightness and strangulation of rubber ring, reduce the hyperemia hypertrophy or blood stasis of hemorrhoid, make it produce ischemia, atrophy and necrosis, and the ligation tissue gradually falls off, and the wound tissue is repaired and healed. It is one of the best treatment methods for non-surgical treatment.

[0003] At present, the hemorrhoid ligation device on the market is mostly manually operated from ligation, tightness to cutting, that is, after the tissue is sucked into the cavity tube by the suction device, the ligation rubber ring is manually released, then the ligation rubber ring is manually tightened, and the doctor judges the ligation rubber ring to be tightened to the expected value according to the surgical experience, and then cuts the connection between the rubber ring and the tightening mechanism with scissors. Manual operation is inconvenient, especially when the tightening device and the ligation device are separated, improper operation can easily cause the ligation rubber ring to fall off, and various actions need to be switched during use, and the tightness of the ligation ring depends entirely on personal experience, and the ligation effect cannot be visualized.

[0004] Therefore, how to solve the defects of the above-mentioned prior art has become the direction of the efforts of the technical personnel in this field. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a kind of intelligent hemorrhoid ligation device, which can completely solve the above-mentioned deficiencies of prior art.

[0006] The purpose of this utility model is achieved through the following technical solution: An intelligent hemorrhoid ligation device, comprising a gun body and a quick-release connector, wherein the gun body includes an air connection pipe, and the quick-release connector includes an inner tube, a ligation ring, and a push tube. The ligation ring consists of a slip knot and a tightening knot. The rear end of the inner tube is engaged with the gun body via an elastic quick-release buckle. The push tube is fitted onto the inner tube, and the front end of the inner tube extends outwards. The slip knot of the ligation ring is fitted onto the inner tube extending outwards. The device is characterized by further including a pull bar, a push block, and a rotary cutter, as well as a battery, a first control circuit board, a motor, a lead screw, a rotary encoder, a slider, and a second control circuit board disposed within the gun body. The pull bar is engaged within the push block. The push block is secured to the push tube, and a rotary cutter is fixed to the front end of the push block. The tension knot of the loop passes through the rotary cutter and is secured to the pull strip. The battery is connected to the first control circuit board and the second control circuit board respectively. The first control circuit board is connected to the motor, the motor is connected to the lead screw, the lead screw is engaged with the slider, and the slider is connected to the push tube. The motor drives the lead screw to slide back and forth. When the lead screw pushes the slider to slide back and forth, the slider pushes the push tube to slide back and forth. The second control circuit board is connected to the rotary encoder, and the rotary encoder is fixed to the lead screw. The slider is connected to the rear end of the pull strip. When the lead screw pushes the slider to slide back and forth, the pull strip moves back and forth.

[0007] As one of the preferred methods, the slider includes a first screw fixing groove, a second air pipe sliding groove, a third push block, and a fourth pull bar fixing block. The second air pipe sliding groove is fixedly clamped onto the air circuit connecting pipe, the screw fixing is clamped onto the first screw fixing groove, the third push block is connected to the rear end of the push pipe, and the rear end of the pull bar is provided with a barb that hooks onto the fourth pull bar fixing block.

[0008] As one of the preferred methods, the push tube is equipped with a stop block, the stop block, the rotary cutter and the pull strip are located in the same straight line, the loop passes around the stop block and through the rotary cutter, and then gets stuck on the wire clamping port at the front end of the pull strip.

[0009] As one of the preferred methods, the push block is provided with a push block slider and a push block connecting block, and the push block connecting block is locked onto the gun body; the push block slider is slidably locked onto the push tube, and the pull bar is locked between the push block and the push tube.

[0010] As one of the preferred methods, the push tube is provided with a limit card, the inner wall of the limit card is provided with a positioning protrusion, the pull bar is locked in the limit card, and the outer wall of the pull bar is provided with a positioning groove corresponding to the positioning protrusion.

[0011] As one of the preferred methods, the push tube is also provided with limiting protrusions, and there are two or more limiting protrusions, with the pull strip being stuck in the limiting protrusions.

[0012] As one of the preferred methods, the rear end of the inner tube is provided with a protruding protrusion, and the rear end of the push tube is provided with a groove. When the protrusion is locked in the groove, the push tube is engaged with the inner tube.

[0013] As one of the preferred methods, the rear end of the inner tube is provided with an inner tube connection port, which is snapped onto the gas connection pipe, and a sealing ring is provided at the snapping point.

[0014] As one of the preferred methods, the rear end of the inner tube is provided with an elastic quick-release buckle, which is locked onto the gun body.

[0015] As one of the preferred methods, the air connection pipe is equipped with an air inlet, and a negative pressure switch is provided on the gun body to block the air inlet. The gun body is also equipped with control buttons and a display.

[0016] As one of the preferred methods, the second control circuit board includes a motor drive circuit, a battery charging and discharging and boost circuit, an LCD, a photoelectric limit switch, and limit switch electronic circuitry.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: The intelligent hemorrhoid ligation device of this invention incorporates a rotary cutter with a cutting function in its structural design, avoiding the need to switch to external tools such as scissors during surgery; it monitors the movement of the DC geared motor by adding a high-precision rotary encoder at the lead screw and combining it with the controller to detect the movement state of the DC geared motor, thereby calculating the degree of tightening, and can realize automatic control of adsorbing the lesion, ligating the lesion, tightening the ligation ring, and cutting the ligation ring. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the hemorrhoid ligation device of this utility model.

[0019] Figure 2 This is an exploded view of the structure of the hemorrhoid ligation device of this utility model.

[0020] Figure 3 This is a structural schematic diagram of the present invention with a cross-section of the gun body.

[0021] Figure 4 This is a utility model Figure 3 One of the partial structural diagrams of the connection between the gun body and the quick-change connector.

[0022] Figure 5 This is a utility model Figure 3 Partial structural diagram of the connection between the gun body and the quick-change connector (Part 2).

[0023] Figure 6 yes Figure 5 One of the structural diagrams of the slider.

[0024] Figure 7 yes Figure 5 The second schematic diagram of the middle slider.

[0025] Figure 8 yes Figure 2A schematic diagram of the structure of the rotary cutter.

[0026] Figure 9 yes Figure 8 A schematic diagram of the AA cross-sectional structure.

[0027] Figure 10 This is a structural diagram of a quick-connect coupling.

[0028] In the attached diagram: 1. Air connection pipe; 2. Battery; 3. Control circuit board 1; 4. Motor; 401. Lead screw; 5. Rotary encoder; 6. Slider; 61. Lead screw fixing groove 1; 62. Air pipe sliding groove 2; 63. Push block 3; 64. Pull bar fixing block 4; 7. Control circuit board; 8. Air inlet; 9. Gun body; 901. Control button; 902. Display; 10. Negative pressure switch; 11. Inner tube; 12. Loop ring; 13. Push tube protrusion. Ring 131, pull bar 14, wire clamp 141, push block 15, rotary cutter 16, stop block 17, connecting block 18, elastic quick-release buckle 111, sealing ring 112, protrusion 113, inner tube connecting port 114, slip knot ring 121, tightening knot 122, limit clip 131, limit protrusion 132, positioning protrusion 136, groove 137, push block slider 151, push block connecting block 152, positioning groove 153. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example:

[0031] like Figures 1-10 As shown, an intelligent hemorrhoid ligation device mainly consists of two large components: the gun body 9 and the quick-change connector. For ease of explanation, the direction of the gun body is referred to as "rear," and the direction of the nozzle of the quick-change connector is referred to as "front." This utility model optimizes existing ligation devices by integrating ligation, tightening, and tangling functions through a controller, a DC geared motor, a rotary encoder, and a redesigned quick-change connector.

[0032] The quick-connect coupling includes an inner tube 11, a ferrule 12, a push tube 13, a pull bar 14, a push block 15, and a rotary cutter 16. The gun body 9 includes an air connection pipe 1, a battery 2, a primary control circuit board 3, a motor 4, a lead screw 401, a rotary encoder 5, a slider 6, and a secondary control circuit board 7. The battery 2 is connected to both the primary control circuit board 3 and the secondary control circuit board 7. The primary control circuit board 2 is connected to the motor 4, which is connected to the lead screw 401. The lead screw 401 engages with the slider 6, which is connected to the push tube 13. The motor 4 drives the lead screw 401 to slide back and forth. When the lead screw 401 pushes the slider 6 to slide back and forth, the slider 6 pushes the push tube 13 to slide back and forth.

[0033] in:

[0034] The gas connection tube is used to connect the inner tube of the negative pressure adsorption device and the quick-change connector to realize the tissue adsorption function.

[0035] The battery powers the main unit of the device.

[0036] The machine body is equipped with a button circuit board containing three buttons, which are used to set parameters, control the motor stepping, and control the power supply of the circuit.

[0037] The motor, through the control circuit, performs the functions of banding and tightening.

[0038] A rotary encoder is used to monitor the step distance of a motor.

[0039] The control circuit board contains electronic circuits such as a motor drive circuit, a battery charging and discharging and boost circuit, an LCD, and limit switches. It realizes functions such as controlling the motor rotation direction, performing strapping and tightening calculations based on received coded information, monitoring battery power, and displaying parameters and monitoring data.

[0040] The lacing ring 12 consists of a rubber slip knot 121 and a tightening knot 122. A rubber strip is also present between the slip knot and the tightening knot. Pulling one end of the tightening knot will tighten the slip knot, making the knot smaller and tighter. The rear end of the inner tube 11 is equipped with an elastic quick-release buckle 111, which is engaged with the gun body 9. The inner tube 11 is connected to the gun body 9 via the elastic quick-release buckle 111, achieving the purpose of quick-change connectors. The push tube 13 is fitted onto the inner tube 11, and the push tube 13 extends outward from the front end of the inner tube 11. The slip knot opening 121 of the loop 12 is fitted onto the inner tube 11 with the push tube 13 extending outward. Once a certain pushing force is applied to the push tube, the push tube can push the slip knot opening outward. The pull strip 14 is inserted into the push block 15, and the push block 15 is inserted into the push tube 13. The front end of the push block is fixed with a rotary cutter 16. The tension knot of the loop 12 passes through the rotary cutter 16 and is inserted into the pull strip 14. The rotary cutter is used to cut the tension strip.

[0041] Among them, the gun body 9 is equipped with a control button 901 and a display 902. The device is equipped with an LCD display that can display the battery level and tightening size. Combined with the detection results on the LCD screen, the tightening step control can be realized. Doctors can set the ligation tightening parameters to realize automatic control of ligation and tightening.

[0042] Specifically, the input end of the air connection pipe 1 is connected to an external air compressor, and the output end is connected to the inner tube. The inner tube 11 has an inner tube connection port 114 at its rear end, which is a threaded connector. The inner tube is screwed onto the air connection pipe 1 through this port, and a sealing ring 112 is provided at the connection point to prevent air leakage. The air connection pipe 1 has an air inlet 8, and a negative pressure switch 10 is provided on the gun body 9 to block the air inlet 8. The negative pressure switch controls the flow of negative pressure in the external air compressor. When the air inlet is closed, the negative pressure compressor is connected to the air connection pipe 1, and negative pressure is input into the inner tube through the air connection pipe. When in use, the inner tube is directly aimed at the hemorrhoid lesion. Under the action of negative pressure, the opening at the front end of the inner tube adheres to the hemorrhoid lesion.

[0043] The slider 6 is a specially designed structure, comprising a first screw fixing groove 61, a second air pipe sliding groove 62, a third push block 63, and a fourth pull bar fixing block 64. The slider primarily performs four functions:

[0044] 1. The second air pipe sliding groove 62 is fixedly clipped onto the air circuit connecting pipe 1. The entire slider needs to slide back and forth on the air circuit connecting pipe because a platform with a sliding groove is pre-set on the air circuit connecting pipe 1, and then the slider 6 is fixed on it to achieve the purpose of sliding.

[0045] 2. The third pusher block 63 is connected to the rear end of the push tube 13. The slider pushes the push tube forward. The ligating ring, which is fitted in front of the push tube and located on the inner tube, is pushed off the inner tube by the push tube. Since the inner tube has already adhered to the hemorrhoid lesion, the ligating ring is fitted onto the hemorrhoid lesion.

[0046] 3. The slider 6 is connected to the rear end of the pull bar 14. When the lead screw 401 pushes the slider 6 to slide back and forth, the pull bar 14 moves back and forth with the slider. The pull bar 14 is engaged between the push block 15 and the push tube 13. The push tube 13 is provided with a limiting clip 131, and the inner wall of the limiting clip 131 is provided with a positioning protrusion 136. The pull bar 14 is engaged in the limiting clip 131. The outer wall of the pull bar 14 is provided with a positioning groove 153 corresponding to the positioning protrusion. The purpose of setting the positioning protrusion and the positioning groove is to give the pull bar and the push tube a certain positioning function. When pushed by external force, it can reach the position. For easy fixing, the push tube 13 is also provided with a limiting protrusion 132. There are two or more limiting protrusions 132, and the pull bar 14 is engaged in the limiting protrusion 132. The rear end of the pull strip 14 has a barb that hooks onto the fourth pull strip fixing block 64; the slider fixes the pull strip, and as the slider slides backward, the pull strip will also move backward, thereby causing the tension knot at the front end of the pull strip to move backward, so that the entire rubber strip is in a taut state, and the slipknot loop that has been placed on the hemorrhoid lesion will be tightened, and the slipknot loop will constrict and block the blood supply to the hemorrhoid.

[0047] 4. The lead screw 401 is fixedly attached to the first lead screw fixing slot 61. In specific implementation, the stroke program is preset in the first control circuit board. The motor rotation and the forward distance of the lead screw are preset. The forward distance of the lead screw is controlled by the first control circuit board, thereby controlling the sliding distance of the slider.

[0048] The push block 15 is equipped with a push block slider 151 and a push block connecting block 152. The push block connecting block 152 is locked onto the gun body 9; the push block slider 151 is slidably locked onto the push tube 13. The front end of the push tube 13 is also equipped with a stop block 17, which acts like a cutting board. The stop block 17, the rotary cutter, and the pull strip are located in a straight line. The ligating ring 12 passes around the stop block 17, passes through the rotary cutter 16, and is then locked onto the wire-holding opening 141 at the front end of the pull strip 14. When the push block is pushed forward, the entire rotary cutter also moves forward. The wire of the ligating ring is located between the stop block and the rotary cutter. Therefore, the stop block acts like a cutting board at this time. The rotary cutter has a cylindrical structure with a ring of blades at its front end. The blades can cut the rubber strip of the ligating ring, so that the opening of the ligating ring at the front end of the entire ligator can remain at the hemorrhoid lesion.

[0049] Once the ligating ring has tightened to the desired tension, the rubber strip on the ligating ring is cut by the rotary cutter by pushing the push block, completing the separation of the ligating ring from the entire ligating device. After the cutting action is completed, the negative pressure in the air connection tube is released through the exhaust device, allowing the adsorbed hemorrhoidal lesion tissue to fall out of the inner tube. This completes the entire process of adsorption-ligation-tightening-cutting.

[0050] To make the overall use more convenient, especially the use of the inner tube and the push tube, a protruding protrusion 113 is provided at the rear end of the inner tube 11, and a groove 137 is provided at the rear end of the push tube 13. When the protrusion 113 is locked in the groove 137, the push tube 13 is locked with the inner tube 11. This locking is a temporary locking to prevent the entire push tube from falling off the inner tube at any time. Once a certain pushing force is applied, the push tube can move forward from the inner tube without being restricted by the protrusion.

[0051] The second control circuit board 7 is connected to the rotary encoder 5, which is fixed on the lead screw 401. The high-precision rotary encoder is used to monitor the step distance test of the motor. Combined with the photoelectric limit switch and the corresponding software algorithm, it detects the motion state of the motor and calculates the degree of tightening.

[0052] The second control circuit board includes a motor drive circuit, a battery charging and discharging and boost circuit, an LCD, limit switches and other electronic circuits, photoelectric limit switches and corresponding software. It detects the motor's motion status and realizes functions such as controlling the motor's rotation direction, performing strapping and tightening calculations based on received coded information, monitoring battery power, and displaying parameters and monitoring data.

[0053] The present invention can achieve the following effects:

[0054] 1. The ligation and tightening processes can be automated with a single click via control.

[0055] 2. Automatic or semi-automatic control of bandaging and tightening can be achieved through parameter preset or step control;

[0056] 3. Monitor the tightness of the bandage to make the tightness of the bandage visible.

[0057] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An intelligent hemorrhoid ligation device, comprising a gun body and a quick-release connector, wherein the gun body includes an air connection tube, the quick-release connector includes an inner tube, a ligation ring, and a push tube, the ligation ring being composed of a slip knot and a tightening knot, the rear end of the inner tube being engaged with the gun body via an elastic quick-release buckle, the push tube being fitted onto the inner tube, and the front end of the inner tube extending outwards towards the push tube, the slip knot of the ligation ring being fitted onto the inner tube extending outwards towards the push tube, characterized in that: It also includes a pull bar, a push block, and a rotary cutter, as well as a battery, a first control circuit board, a motor, a lead screw, a rotary encoder, a slider, and a second control circuit board, all housed within the gun body. The pull bar is secured within the push block, which in turn is secured to the push tube. The rotary cutter is fixed to the front end of the push block, and the tension knot of the ferrule passes through the rotary cutter and is secured to the pull bar. The battery is connected to both the first and second control circuit boards. The first control circuit board is connected to the motor, which in turn is connected to the lead screw. The lead screw is engaged with the slider, which is connected to the push tube. The motor drives the lead screw to slide back and forth, and when the lead screw pushes the slider to slide back and forth, the slider pushes the push tube to slide back and forth. The second control circuit board is connected to the rotary encoder, which is fixed to the lead screw. The slider is connected to the rear end of the pull bar, and when the lead screw pushes the slider to slide back and forth, the pull bar moves back and forth.

2. The intelligent hemorrhoid ligation device according to claim 1, characterized in that: The slider includes a first screw fixing groove, a second air pipe sliding groove, a third push block, and a fourth pull bar fixing block. The second air pipe sliding groove is fixedly clipped onto the air circuit connecting pipe, the screw fixing groove is connected to the first screw fixing groove, the third push block is connected to the rear end of the push pipe, and the rear end of the pull bar is provided with a barb that hooks onto the fourth pull bar fixing block.

3. The intelligent hemorrhoid ligation device according to claim 1, characterized in that: The push tube is equipped with a stop block. The stop block, the rotary cutter, and the pull strip are in the same straight line. The loop goes around the stop block, passes through the rotary cutter, and then gets stuck on the wire clamping port at the front end of the pull strip.

4. The intelligent hemorrhoid ligation device according to claim 3, characterized in that: The push block is equipped with a push block slider and a push block connecting block. The push block connecting block is locked onto the gun body; the push block slider is slidably locked onto the push tube, and the pull rod is locked between the push block and the push tube.

5. The intelligent hemorrhoid ligation device according to claim 4, characterized in that: The push tube is equipped with a limit card, and the inner wall of the limit card is equipped with positioning protrusions. The pull bar is locked in the limit card, and the outer wall of the pull bar is equipped with positioning grooves corresponding to the positioning protrusions.

6. The intelligent hemorrhoid ligation device according to claim 5, characterized in that: The push tube is also provided with limiting protrusions, and there are two or more limiting protrusions. The pull strip is locked in the limiting protrusions. The rear end of the inner tube is provided with a protruding protrusion, and the rear end of the push tube is provided with a groove. When the protrusion is locked in the groove, the push tube is locked with the inner tube.

7. The intelligent hemorrhoid ligation device according to claim 1, characterized in that: The inner tube has an inner tube connection port at its rear end. The inner tube connection port is snapped onto the gas connection pipe, and a sealing ring is provided at the snapping point.

8. The intelligent hemorrhoid ligation device according to claim 7, characterized in that: The rear end of the inner tube is equipped with an elastic quick-release buckle, which is locked onto the gun body.

9. The intelligent hemorrhoid ligation device according to claim 1, characterized in that: The air inlet is located on the air connection pipe, and a negative pressure switch is located on the gun body to block the air inlet. The gun body also has control buttons and a display.

10. The intelligent hemorrhoid ligation device according to claim 1, characterized in that: The second control circuit board includes a motor drive circuit, a battery charging and discharging and boost circuit, an LCD, a photoelectric limit switch, and limit switch electronic circuitry.

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